MP3_MODE_MP3 = 1 -- use mp3
MP3_MODE_SURROUND = 2 -- use surround
MP3_MODE_16CH = 4 -- use all DS channels
MP3_MODE_8CH = 8 -- use DS channels 1-8 only

MP3_NO_DELAY = 0 -- 0 ms delay
MP3_SURROUND = 1 -- 16 ms delay
MP3_REVERB = 4 -- 66 ms delay

MP3_PCM_8BIT = 0
MP3_PCM_16BIT = 1
MP3_ADPCM = 2

MP3ST_STOPPED = 0
MP3ST_PLAYING = 1
MP3ST_PAUSED = 2
MP3ST_OUT_OF_DATA = 4
MP3ST_DECODE_ERROR = 8
MP3ST_INITFAILED = 16